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6885000000 = 26345717
BaseRepresentation
bin1100110100110000…
…01100001101000000
3122202211100020110000
412122120030031000
5103100030000000
63055105240000
7332421351204
oct63230141500
918684306400
106885000000
112a1344844a
121401933000
1385953cac8
14494582b04
152a46a0000
hex19a60c340

6885000000 has 560 divisors, whose sum is σ = 27012235536. Its totient is φ = 1728000000.

The previous prime is 6884999969. The next prime is 6885000011. The reversal of 6885000000 is 5886.

It can be written as a sum of positive squares in 8 ways, for example, as 6080256576 + 804743424 = 77976^2 + 28368^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Saint-Exupery number, since it is equal to the product of the sides of a Pythagorean triangle: 2550 × 2250 × 1200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 404999992 + ... + 405000008.

Almost surely, 26885000000 is an apocalyptic number.

6885000000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6885000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13506117768).

6885000000 is an abundant number, since it is smaller than the sum of its proper divisors (20127235536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6885000000 is an frugal number, since it uses more digits than its factorization.

6885000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76 (or 27 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 6885000000 is about 82975.9001156360. The cubic root of 6885000000 is about 1902.3977116155.

Adding to 6885000000 its reverse (5886), we get a palindrome (6885005886).

The spelling of 6885000000 in words is "six billion, eight hundred eighty-five million", and thus it is an aban number.